HESI A2 Vocabulary 2023

Correct Answer: A

Rationale: The correct answer is A: Ripple. In this sentence, 'undulate' is used to describe a smooth, wave-like motion of the muscles, which aligns with the meaning of 'ripple.' The word 'undulate' implies a continuous and flowing movement, resembling the gentle and rhythmic movement of waves. The other choices, shake, flatten, and unknot, do not capture the specific fluid and continuous motion described in the sentence. 'Shake' implies a more abrupt and irregular movement, 'flatten' suggests a completely different action of making something flat, and 'unknot' refers to the action of undoing a knot, none of which fit the context of the sentence.

Correct Answer: C

Rationale: The correct answer is C: Merge. In the given sentence, 'amalgamate' is used in the context of two or more companies coming together to form a single entity. The word 'amalgamate' means to combine or unite. Therefore, in this sentence, if the companies 'amalgamate,' it implies that they are merging. Explanation for other choices: A: Disband - This means to break up or dissolve, which is the opposite of merging. B: Move - This refers to changing physical location and is unrelated to the context of companies merging. D: Regroup - This means to reassemble or reorganize, which is different from merging into a single entity.

Correct Answer: A

Rationale: The correct answer is A: Add water to. In the context of diluting medicine, the word 'dilute' means to make the substance less concentrated by adding a solvent, usually water. This process helps in reducing the potency of the medicine for safer consumption. The other choices are incorrect as they do not accurately reflect the meaning of 'dilute' in the given context. Choice B (Reduce by half) does not necessarily involve adding a solvent, choice C (Warm up) refers to increasing temperature, and choice D (Decontaminate) is about removing impurities, none of which align with the meaning of dilute.

Correct Answer: A

Rationale: The term 'superior' in anatomy refers to a structure being located above another structure. In the human body, 'superior' typically refers to the top part. For example, the head is superior to the neck. Therefore, the correct answer is A: Top. - B: Bottom is incorrect as 'inferior' is used to refer to the lower part. - C: Front is incorrect as 'anterior' is used to describe the front part. - D: Back is incorrect as 'posterior' is used to describe the back part.

Correct Answer: C

Rationale: Step 1: Understand the definition - Bifurcate means to divide or split into two branches or forks. Step 2: Analyze the choices - A is incorrect as bifurcate does not involve folding. B is incorrect as it refers to flowering, not dividing. D is incorrect as it involves piercing, not dividing. Step 3: Choose the correct answer - C accurately describes the act of dividing into two forks, aligning with the definition of bifurcate. Summary: Choice C is correct as it directly relates to the definition of bifurcate, while the other choices are incorrect as they do not capture the essence of the word.